CN103804733B - Vibration-isolation rubber material for steam turbine water pump set and preparation method thereof - Google Patents
Vibration-isolation rubber material for steam turbine water pump set and preparation method thereof Download PDFInfo
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- CN103804733B CN103804733B CN201410063904.9A CN201410063904A CN103804733B CN 103804733 B CN103804733 B CN 103804733B CN 201410063904 A CN201410063904 A CN 201410063904A CN 103804733 B CN103804733 B CN 103804733B
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Abstract
The invention provides a vibration-isolation rubber material for a steam turbine water pump set and a preparation method thereof. According to the vibration-isolation rubber material, a main body base material is formed by combining natural rubber and butadiene-acrylonitrile rubber; furthermore, the butadiene-acrylonitrile rubber and the natural rubber are respectively thinned on an open mill and then are uniformly mixed; then fine-grain high-structure nano carbon black is added to improve the rigidity of the rubber material and the like; the rubber material obtained by the invention has high rigidity and low compression permanent deformation; the extrusion deformation of the material under a vibration state is small and the vibration isolation time is long; and meanwhile, the vibration-isolation rubber material has the characteristics of controllable static compression deformation, smoke resistance and oil mist resistance, and good lubricating oil performance.
Description
【Technical field】
The present invention relates to a kind of rubber vibration isolation material and preparation method thereof, specifically related to a kind of steam turbine water
Pump assembly vibration isolation rubber material and preparation method thereof.
【Background technology】
Known, steam turbine water pump assembly by steam turbine, water pump, public frame and is located at public machine
Oil pump composition in frame, shaft system of unit drives oil pump that the bearing of steam turbine and water pump is carried out by gear
Lubrication；And steam turbine feed pump set mainly has the reason producing vibration：Turbine rotor rotation imbalance,
The vibration that water pump vane rotation is uneven, coupling of shaft system error is brought, the engagement of axle band oil pump gear cause
Vibration, fluid produces in water pump assembly pressure fluctuation power, turbine rotor blade rotor impact gas
Vibration of the vibration of body generation and bearing etc..Meanwhile, steam turbine smog in the work environment is dense
Spending for 2mg/m3, oil mist concentration is 50mg/m3, causes its working environment extremely severe；In order to mitigate
The vibration that steam turbine feedwater pump assembly produces, at present between the overhanging platform of unit and bracket, under bracket
Vibration isolator is placed by side；Under can not being met in working order due to common vibration isolator, base after vibration isolation block
Frequency reduces 2dB, and total vibration level reduces the requirement of 8dB, and a kind of urgent need medium-resistance of research and development is excellent, full
The vibration isolator that sufficient steam turbine vibration isolation requires.
【Content of the invention】
Not enough present in background technology for overcoming, the invention provides a kind of steam turbine water pump assembly is used
Vibration isolation rubber material and preparation method thereof, the main body base material of the present invention adopts natural rubber and nitrile rubber
It is used in combination, then pass through to add fine particle high structure nano white carbon black raising elastomeric material hardness etc., by this
Inventing obtained elastomeric material, to have a Static Compression deformation controlled, resistance to smog and mist of oil and lubrication oiliness
The good feature of energy.
For realizing goal of the invention as above, the present invention adopts technical scheme as described below：
A kind of steam turbine water pump assembly vibration isolation rubber material, the component of described elastomeric material is by weight
Including：
A kind of steam turbine water pump assembly preparation method of vibration isolation rubber material, methods described is first by fourth
Nitrile rubber and natural rubber are distinguished thin logical 1～5 time on a mill, by the nitrile rubber of Bao Tonghou and sky
So rubber mixes on a mill, then sequentially adds 5～7 parts of zinc oxide, 1～3 part of stearic acid, prevents
Old agent RD4～6 part, antioxidant A W6～8 part, 20～30 parts of antioxidant 4010NA, nano carbon black 40～
65 parts, 3～8 parts of vulcanization aid, 1～4 part of sulfur, 2～4 parts of Vulcanization accelerator TMTD, diphenylguanidine TDM2～
After 4 parts of mixings uniformly, slice forms lamellar elastomeric compound, further that elastomeric compound is enterprising in vulcanizing press
Row one step cure, now controls curing temperature to be 140 DEG C～150 DEG C, cure time is 10～20 minutes,
Sulfide stress is that 8～12MPa can get required elastomeric material.
The described steam turbine water pump assembly preparation method of vibration isolation rubber material, described natural rubber
Mooney viscosity is 50～60.
The described steam turbine water pump assembly preparation method of vibration isolation rubber material, described nitrile rubber
Acrylonitrile content is 35～41%, and Mooney viscosity is 30～100.
The described steam turbine water pump assembly preparation method of vibration isolation rubber material, described nano carbon black is
High reinforced type medium super abrasion furnace black or high wear-resistant carbon black.
The described steam turbine water pump assembly preparation method of vibration isolation rubber material, in described high reinforced type
Model N220 of super abrasion furnace black or N242 or N285.
The described steam turbine water pump assembly preparation method of vibration isolation rubber material, described high wear-resistant carbon black
Model N330 or N339.
The described steam turbine water pump assembly preparation method of vibration isolation rubber material, described anti-aging agent RD
For 6- ethyoxyl -2,2,4- trimethyl -1,2- dihyaroquinoline, antioxidant A W is 2,2,4- trimethyls
- 1,2- dihyaroquinoline polymer, antioxidant 4010NA is N- isopropyl-N,- diphenyl-para-phenylene diamine.
The described steam turbine water pump assembly preparation method of vibration isolation rubber material, described Vulcanization accelerator TMTD
For tetra methylthiuram disulfide, altax DT is 4,4 dithio two agate beautiful jade.
Using technical scheme as above, the present invention has superiority as described below：
A kind of steam turbine water pump assembly vibration isolation rubber material and preparation method thereof of the present invention, this
The main body base material of invention is used in combination using natural rubber and nitrile rubber, then passes through to add the high knot of fine particle
Structure nano carbon black improves elastomeric material hardness etc., is had higher by the elastomeric material that the present invention is obtained
Hardness and compared with low compression set it is ensured that crimp under vibrational state for the material is little, vibration isolation is made
Use the time long, Static Compression deformation simultaneously is controlled, resistance to smog and mist of oil and the good feature of lubricants performance.
【Specific embodiment】
The present invention can be explained in more detail by the following examples, the invention is not limited in following
Embodiment；
A kind of steam turbine water pump assembly vibration isolation rubber material of the present invention, described elastomeric material
Component includes by weight：
A kind of steam turbine water pump assembly preparation method of vibration isolation rubber material, methods described is first by fourth
Nitrile rubber and natural rubber are distinguished thin logical 1～5 time on a mill, and the Mooney of described natural rubber glues
To spend for 50～60, the acrylonitrile content of described nitrile rubber is 35～41%, Mooney viscosity is 30～
100, the nitrile rubber of Bao Tonghou and natural rubber are mixed on a mill, wherein nitrile rubber divides
Contain acrylonitrile group in subchain, there is preferable resistance to chemical attack, ageing-resistant, fatigue performance and height
Temperature and pressure compression permanent deformation performance, natural rubber damped coefficient is less simultaneously, and its combination property is preferably, resistance to
Fatigue behaviour is good, and heat is low, creep is little etc., and the advantage of two glue kinds of summary carries out complementation, knot
Close the actually used operating mode of unit, select the two to be used in combination；Then sequentially add 5～7 parts of zinc oxide, firmly
1～3 part of fat acid, 4～6 parts of anti-aging agent RD, antioxidant A W6～8 part, antioxidant 4010NA 20～
30 parts, 40～65 parts of nano carbon black, 3～8 parts of vulcanization aid, 1～4 part of sulfur, Vulcanization accelerator TMTD 2～
4 parts, after the mixing uniformly of diphenylguanidine TDM2～4 part, slice forms lamellar elastomeric compound, will mix further
Refining glue carries out one step cure on vulcanizing press, now controls curing temperature to be 140 DEG C～150 DEG C,
Cure time is 10～20 minutes, and sulfide stress is that 8～12MPa can get required rubber material
Material, wherein said nano carbon black is high reinforced type medium super abrasion furnace black or high wear-resistant carbon black, both
Different types of fine particle white carbon black can improve the property such as the tensile strength of vulcanizate, tearing strength, hardness
Can, to improve the ability that high pressure resisted by material, the model of described high reinforced type medium super abrasion furnace black
N220 or N242 or N285, model N330 of described high wear-resistant carbon black or N339；Described anti-old
Agent RD is 6- ethyoxyl -2,2,4- trimethyl -1,2- dihyaroquinoline, and antioxidant A W is 2,2,4-
Trimethyl -1,2- dihyaroquinoline polymer, antioxidant 4010NA is N- isopropyl-N,- phenyl pair
Phenylenediamine；Described Vulcanization accelerator TMTD is tetra methylthiuram disulfide, and altax DT is
4,4 dithio two agate beautiful jade.
The specific embodiment of the present invention is as follows：
Embodiment 1
Carry out the weighing of each component according to the formula shown in table 1, then according to preparation of the present invention
Method prepares required rubber with 145 DEG C × 10min, the process conditions of 10Mpa sulfuration after elastomeric compound is obtained
Glue material.
Table 1 steam turbine water pump assembly rubber vibration isolation material prescription (1)
| Sequence number | Raw material title | Consumption (part) |
| 1 | Nitrile rubber | 85 |
| 2 | Natural rubber | 15 |
| 3 | Zinc oxide | 5 |
| 4 | Stearic acid | 1 |
| 5 | Anti-aging agent RD | 4 |
| 6 | Antioxidant A W | 4 |
| 7 | Antioxidant 4010NA | 20 |
| 8 | Nano carbon black | 40 |
| 9 | Vulcanization accelerator TMTD | 2 |
| 10 | Diphenylguanidine TDM | 2 |
| 11 | Sulfur | 4 |
| 12 | Vulcanization aid | 3 |
The tensile strength of the elastomeric material prepared according to formula (1) for 12.7MPa elongation rate of tensile failure is
511%, compression set is 14.9%, and Shao's A hardness is 52, and elastomeric material is in L-TSA68
Soaking the weight rate after 72h in number machine oil is 1.35%, and volume change is 1.74%.
Embodiment 2
Carry out the weighing of each component according to the formula shown in table 2, then according to preparation of the present invention
Method prepares required rubber with 145 DEG C × 10min, the process conditions of 10Mpa sulfuration after elastomeric compound is obtained
Glue material.
Table 2 steam turbine water pump assembly rubber vibration isolation material prescription (2)
| Sequence number | Raw material title | Consumption (part) |
| 1 | Nitrile rubber | 65 |
| 2 | Natural rubber | 35 |
| 3 | Zinc oxide | 6 |
| 4 | Stearic acid | 2 |
| 5 | Anti-aging agent RD | 6 |
| 6 | Antioxidant A W | 6 |
| 7 | Antioxidant 4010NA | 40 |
| 8 | Nano carbon black | 50 |
| 9 | Vulcanization accelerator TMTD | 4 |
| 10 | Diphenylguanidine TDM | 4 |
| 11 | Sulfur | 4 |
| 12 | Vulcanization aid | 8 |
The tensile strength of the elastomeric material prepared according to formula (1) for 14.9MPa elongation rate of tensile failure is
529%, compression set is 14.0%, and Shao's A hardness is 53, and elastomeric material is in L-TSA68
Soaking the weight rate after 72h in number machine oil is 1.40%, and volume change is 1.59%.
Embodiment 3
Carry out the weighing of each component according to the formula shown in table 3, then according to preparation of the present invention
Method prepares required rubber with 145 DEG C × 10min, the process conditions of 10Mpa sulfuration after elastomeric compound is obtained
Glue material.
Table 3 steam turbine water pump assembly rubber vibration isolation material prescription (3)
| Sequence number | Raw material title | Consumption (part) |
| 1 | Nitrile rubber | 75 |
| 2 | Natural rubber | 20 |
| 3 | Zinc oxide | 7 |
| 4 | Stearic acid | 3 |
| 5 | Anti-aging agent RD | 5 |
| 6 | Antioxidant A W | 5 |
| 7 | Antioxidant 4010NA | 30 |
| 8 | Nano carbon black | 65 |
| 9 | Vulcanization accelerator TMTD | 3 |
| 10 | Diphenylguanidine TDM | 3 |
| 11 | Sulfur | 4 |
| 12 | Vulcanization aid | 5 |
The tensile strength of the elastomeric material prepared according to formula (1) for 13.5MPa elongation rate of tensile failure is
510%, compression set is 13.2%, Shao's A hardness is 52, and elastomeric material is in L-TSA68
Soaking the weight rate after 72h in number machine oil is 1.38%, and volume change is 1.61%.
The vibration isolator of the rubber vibration isolation material preparation by being prepared using the present invention can meet water pump assembly
Vibration isolation, reduces 10dB through testing total vibration level, vibration isolating effect is good, also has more excellent simultaneously
Medium-resistance, moderate hardness, more excellent ageing-resistant performance, relatively low compression set,
Guarantee its in unit main excited frequency scope in the range of 70Hz-540Hz, unit be subject to vertical and
Under the working condition of axial load, ensure that the vibration isolating effect of long period, and mounting process be simple,
Practical engineering application can be met.
Part not in the detailed description of the invention is prior art.
The embodiment herein selected for the open purpose of the present invention, is presently considered to be suitable
, however, it should be understood that, it is contemplated that include all belonging in this design and invention scope
The all changes of embodiment and improvement.
Claims (9)
1. a kind of steam turbine water pump assembly vibration isolation rubber material, is characterized in that：The component of described elastomeric material includes by weight：
65～85 parts of nitrile rubber；
15～35 parts of natural rubber；
5～7 parts of zinc oxide；
1～3 part of stearic acid；
4～6 parts of anti-aging agent RD；
6～8 parts of antioxidant A W；
20～30 parts of antioxidant 4010NA；
40～65 parts of nano carbon black；
3～8 parts of vulcanization aid；
1～4 part of sulfur；
2～4 parts of Vulcanization accelerator TMTD；
2～4 parts of diphenylguanidine TDM.
2. implement a kind of steam turbine water pump assembly preparation method of vibration isolation rubber material described in claim 1, it is characterized in that：Methods described is led to thin on a mill respectively to nitrile rubber and natural rubber 1～5 time first, the nitrile rubber of Bao Tonghou and natural rubber are mixed on a mill, then sequentially add 5～7 parts of zinc oxide, 1～3 part of stearic acid, 4～6 parts of anti-aging agent RD, antioxidant A W6～8 part, 20～30 parts of antioxidant 4010NA, 40～65 parts of nano carbon black, 3～8 parts of vulcanization aid, 1～4 part of sulfur, 2～4 parts of Vulcanization accelerator TMTD, after the mixing uniformly of diphenylguanidine TDM2～4 part, slice forms lamellar elastomeric compound, further elastomeric compound is carried out on vulcanizing press one step cure, curing temperature is now controlled to be 140 DEG C～150 DEG C, cure time is 10～20 minutes, sulfide stress is that 8～12MPa can get required elastomeric material.
3. the steam turbine water pump assembly preparation method of vibration isolation rubber material according to claim 2, is characterized in that：The Mooney viscosity of described natural rubber is 50～60.
4. the steam turbine water pump assembly preparation method of vibration isolation rubber material according to claim 2, is characterized in that：The acrylonitrile content of described nitrile rubber is 35～41%, and Mooney viscosity is 30～100.
5. the steam turbine water pump assembly preparation method of vibration isolation rubber material according to claim 2, is characterized in that：Described nano carbon black is high reinforced type medium super abrasion furnace black or high wear-resistant carbon black.
6. the steam turbine water pump assembly preparation method of vibration isolation rubber material according to claim 5, is characterized in that：Model N220 of described high reinforced type medium super abrasion furnace black.
7. the steam turbine water pump assembly preparation method of vibration isolation rubber material according to claim 5, is characterized in that：Model N330 of described high wear-resistant carbon black.
8. the steam turbine water pump assembly preparation method of vibration isolation rubber material according to claim 2, is characterized in that：Described anti-aging agent RD is 6- ethyoxyl -2,2,4- trimethyl -1,2- dihyaroquinoline, and antioxidant A W is 2,2,4- trimethyl -1,2- dihyaroquinoline polymer, and antioxidant 4010NA is N- isopropyl-N,- diphenyl-para-phenylene diamine.
9. the steam turbine water pump assembly preparation method of vibration isolation rubber material according to claim 2, is characterized in that：Described Vulcanization accelerator TMTD is tetra methylthiuram disulfide, and altax DT is 4,4 dithio morpholines.
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| CN104151635B (en) * | 2014-08-03 | 2015-11-04 | 北京化工大学 | A kind of shock isolating pedestal high-performance rubber matrix material and preparation method thereof |
| CN108559146A (en) * | 2018-05-15 | 2018-09-21 | 刘丽娜 | A kind of wear-resistant tensile rubber and preparation method thereof |
| CN110144069A (en) * | 2019-04-25 | 2019-08-20 | 江门市蓬江区荷塘伟润橡胶有限公司 | A kind of formula and preparation method thereof of small-sized household water pump rubber impeller |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102993506A (en) * | 2012-11-30 | 2013-03-27 | 西安致泰橡塑工业有限公司 | High-strength shock-absorbing rubber plate for factory equipment |
| CN103396591A (en) * | 2013-06-14 | 2013-11-20 | 中国船舶重工集团公司第七二五研究所 | Oilfield ultrahigh-pressure acid-resistant rubber seal material and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102993506A (en) * | 2012-11-30 | 2013-03-27 | 西安致泰橡塑工业有限公司 | High-strength shock-absorbing rubber plate for factory equipment |
| CN103396591A (en) * | 2013-06-14 | 2013-11-20 | 中国船舶重工集团公司第七二五研究所 | Oilfield ultrahigh-pressure acid-resistant rubber seal material and preparation method thereof |
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